Dunno the interaction you had with the frost dk but
You’re immune to every other CC for 15s (til a cc/kick is “absorbed”)
Every CC that lands lasts 20% longer
No internal CD
Silences don’t seem to affect it
Duration increased stun > kick air > duration increased trap > venthyr port > duration increased full fear. I think healers are going to learn to regret this trinket real fast.
Added a weakaura to the OP
Sounds like rogues need fan of knives aoe interrupt back.